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http://lockedpost.com/files/Steemit-pfunk-Proof.txt

I will be increasing the limit to 450 bytes soon.

I have also just added the first of many sample codes to validate the site content. https://lockedpost.com/code/validate/PHP-Validation-Code/

Thanks for verifying.

A blockchain backed by millions of millions of dollars has its advantages over just any old blockchain. People have a vested interest in it - that sounds good for freedom of speech and information.

You could chain link these larger embeds (~450 bytes per one output - with no limits for outputs I believe but only a limitation on transaction size - 100kb) together to store what Steemit does. You could start each link in the chain with the previous link's transaction ID and store all the information required to rebuild the data - within the Blockchain) But whether that is the right thing to do is another question.